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Quest Engineering QX-280 Series Owner's Manual
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Quest Engineering QX-280 Series Owner's Manual

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QX-280 Series Owner's Manual

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Summary of Contents for Quest Engineering QX-280 Series

  • Page 1 QX-280 Series Owner’s Manual...

  • Page 2: Product Overview

    The QX-280 Series Amplifiers are a high channel density, 1RU, high fidelity solution for high and low impedance distributed audio systems. Available as a single, two or four channel variant; the QX-280 Series is the ideal component for audio visual installations, multi-channel systems, or distributed consumer/commercial applications. The trans- formerless speaker outputs deliver full range audio to all impedance loads from 4 up to 70/100V systems.

  • Page 3: General Caution

    General Caution • Do not expose the unit to any moisture • When cleaning the unit, ensure it has been whether rain, water or other liquids. Exposure disconnected from any power source and to moisture could result in damage to internal that only a dry cloth is used.

  • Page 4: Front Panel Controls

    Front Panel Controls (per channel) Audio Signal Indicator Amplifier Clip Indicator Limiter Active Indicator Audio Signal Indicator Amplifier Protect Indicator Amplifier Clip Indicator Amplifier Power Indicator Limiter Active Indicator Rotary Gain Control Amplifier Protect Indicator Amplifier Power Indicator Rotary Gain Control Figure 1.00 Rear Panel Connections &...

  • Page 5: Parallel Wiring

    Input Signal Wiring Examples Unbalanced Wiring Balanced Wiring Unbalanced Wiring Balanced Wiring Unbalanced Wiring Unbalanced Wiring Balanced Wiring Balanced Wiring + Hot + Hot - Cold + Hot + Hot - Cold Ground - Cold - Cold Ground Ground Ground Figure 2.00 Figure 2.01 Amplifier Wiring Examples...

  • Page 6: Front Panel Led Indicators

    Front Panel LED Indicators Audio Signal is Present This LED will illuminate when the amplifier detects an audio signal. Figure 4.00 Amplifier Channel is Clipping If the amplifier is clipping, this LED will illuminate. Figure 4.01 Limiter is Active When the amplifier reaches the point of clipping, the limiter LED will illuminate.

  • Page 7: Technical Specifications

    ** Quest Engineering reserves the right to make changes in specifications, or products without prior notice. *** The figures shown above are ‘real world’, usable specifications and are conservative as a result. Quest Engineering does not believe in portraying misleading or exaggerated specifications.

  • Page 8: Register Your Product

    Register Your Product Thank you for choosing Quest. Please take the time to complete your product registration. Registering your Quest Engineering product will: • CONFIRM YOUR WARRANTY • REGISTER YOUR PRODUCT • PROTECT YOUR NEW PRODUCT REGISTER ONLINE: www.questengineering.com.au/registration For spare parts and service, contact your local authorised Quest Dealer.

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